<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
<link rel='stylesheet' href='../css/float.css'>
</head>
<body>
<div id="p1">
	<div id="c1">C1</div>
	<div id="c2">C2</div>
	<div id="c3">C3</div>
</div>
<div id="p2">
	<div id="c4">C4</div>
	<div id="c5">C5</div>
	<div id="c6">C6</div>
</div>
<div id="p3">
	<div id="c7">C7</div>
	<div id="c8">C8</div>
	<div id="c9">C9</div>
</div>
</body>
</html>